Heavy-Duty Conveyor Components
Steel Conveyor Troughing Idler Roller Set with Mounting Frame
Engineered for bulk material handling in mining, quarrying, cement, and aggregate conveyor systems. Delivers reliable belt centering, deep trough support, and minimal spillage under high continuous load.

Engineered for High-Capacity Bulk Conveying
The 3-roller troughing idler set is designed to support the loaded section of the conveyor belt, shaping the belt into a stable trough to maximize cross-sectional capacity and prevent material overflow. Built with high-grade carbon steel tubes, precision deep-groove ball bearings, multi-labyrinth sealing, and a rigid welded steel frame.
Heavy structural steel channel frame resists torsional deflection under dynamic bulk loading.
Dustproof and waterproof labyrinth seal design protects bearings from slurry, fine dust, and moisture.
Low total indicated runout (TIR) and minimal rotational resistance reduce conveyor drive power requirements.
Standard Technical Specifications
| Parameter | Standard Specification | Customization Options |
|---|---|---|
| Product Type | 3-Roller Troughing Idler Set with Bracket | Inline / Offset / Training / Impact |
| Applicable Belt Width | 500 mm – 2200 mm (20" – 86") | Custom belt widths per drawing |
| Trough Angles | 20°, 30°, 35°, 45° | Adjustable or custom fixed angles |
| Roller Diameter (D) | Ø76, Ø89, Ø102, Ø108, Ø127, Ø133, Ø159, Ø194 mm | Custom diameter & wall thickness |
| Roller Tube Material | Carbon Steel / Seamless Steel Pipe (Q235 / S235JR) | Stainless steel / Rubber lagged / HDPE |
| Shaft Specification | Cold-Drawn Round Steel (Ø20, Ø25, Ø30, Ø35, Ø40 mm) | Flat milled / Threaded / Custom ends |
| Bearing Types | 6204, 6205, 6305, 6306, 6307, 6308, 6310 (2RS / ZZ) | Premium brands (SKF, FAG, NSK) on request |
| Sealing System | Multi-Stage Labyrinth Seal + Dustproof Cap (Nylon/Steel) | High-temperature & submersible seals |
| Frame Surface Treatment | Electrostatic Powder Coating / Alkyd Paint / Primer | Hot-dip galvanized (HDG) / Custom colors |
| Manufacturing Standards | CEMA, ISO 1537, DIN 22107, JIS, AS 1332 | Fully compliant with client engineering specs |
Primary Applications
Our troughing idler sets are widely used across heavy-duty bulk handling industries where reliable conveyor operation is critical:
Quality Assurance & Factory Testing
Every roller undergoes static and dynamic balancing and rotation inspection before assembly onto brackets.
Labyrinth seals are tested under water-spray and dust chambers to ensure IP55/IP65 equivalent protection.
Continuous robot-assisted welding ensures strong joint strength between frame channel and roller support brackets.
Machinery test reports, dimension check sheets, and video outgoing inspections are provided upon request.
Frequently Asked Questions
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